Endurance:

Every 4 min for 40 min:
1, 3 min for max distance Optional Erg
2, 3 min Run*
* Choose a distance between 500-800 m that takes you
3 min +-20 sec

Tri Erg:

Every 4 min for 36 min:
1, 3 min for max distance Bike Erg
2, 3 min for max distance Ski Erg
3, 3 min Run*
* Choose a distance between 500-800 m that
takes you 3 min +-20 sec